abstract: Predictive value of serum CA-125 levels in patients with persistent or recurrent epithelial ovarian cancer or peritoneal cancer treated with Bevacizumab (Avastin) Gynecologic Oncology Group phase II trial Ovarian Cancer and Us OVARIAN CANCER and US Ovarian Cancer and Us

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Wednesday, February 08, 2012

abstract: Predictive value of serum CA-125 levels in patients with persistent or recurrent epithelial ovarian cancer or peritoneal cancer treated with Bevacizumab (Avastin) Gynecologic Oncology Group phase II trial




Purpose

To compare two methods of determining therapeutic response and disease progression — modified Gynecologic Cancer Intergroup (GCIG) criteria based on CA-125 and Radiographic Evaluation Criteria in Solid Tumors (RECIST), in a phase II trial of bevacizumab for patients with recurrent or persistent epithelial ovarian and peritoneal carcinoma.

Results

Sixty-two patients were evaluable by RECIST, 59 for progression by CA-125, and 45 for response by CA-125..........

Conclusions

In this study, disease assessment by RECIST and CA-125 appears to correlate in general. However, approximately 10% of patients might demonstrate progression earlier by CA-125.

Highlights

► CA125-defined response and progression were assessed for women with recurrent ovarian cancer.
► CA125 and RECIST-defined response and progression correlated in most cases, but CA125 progression significantly preceded RECIST in 8 cases.
► CA125-defined response to bevacizumab was associated with a statistically significant correlation with overall survival.

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